error/resource mrcuteput/mrcute fileexists
From MoodleDocs
A package with the same name as the one you are trying to upload already exists in the category you specified. If it is not a duplicate, rename your package and try again.
Note: This documentation is for Moodle 2.7. For up-to-date documentation see error/resource mrcuteput/mrcute fileexists.